When some people have not only been outright troublemakers
coupled with the fact that they have been wrong about 100%
of the time, that is the response they get and my response is
based on an explanation to me about what they were asking.

I do not read ou.com anymore because the Ainslie thread over
there was a James Randi wannabe social club and I have no
time for that sort of mental degeneration. And I'm only talking
about that thread and not the forum.

The only real significance of the capacitance of the mosfet is
that it is responsible for the oscillations and he or they can
take it or leave it.

His response to the fact he was proved utterly wrong AGAIN over the 555 caps (what, the 5th time in a row at least?... Lol he would have better luck using a dart board )... Was to simply attack your competence again.

I guess that type of logic works in "Shillsville", but it don't cut it anywhere else on the planet

When some people have not only been outright troublemakers
coupled with the fact that they have been wrong about 100%
of the time, that is the response they get and my response is
based on an explanation to me about what they were asking.

I do not read ou.com anymore because the Ainslie thread over
there was a James Randi wannabe social club and I have no
time for that sort of mental degeneration. And I'm only talking
about that thread and not the forum.

The only real significance of the capacitance of the mosfet is
that it is responsible for the oscillations and he or they can
take it or leave it.

He isn't qualified to analyze a flashlight.

Golly. I take it you feel strongly about this? Rather hoped that my own contributions helped 'lift the tone'? Truth is you're missing nothing. LOL. But on a personal note I rather miss the qiman there.

Fuzzy, those are some very interesting waveforms. I am particularly focusing on the rebound of that very clean negative spike right at the gate turn-off time. The gate is clearly off, and the source pin on the FET drops to what appears to be -2.5V and then mysteriously rebounds above zero with virtually no Gate activity. The source is then driven into another -2V negative spike, apparently by the back swing of the load resistor via the FET body diode. This means the first negative pulse is occurring at the same time the drain is in a rising pulse condition. We need to see the drain and source on the screen at the same time for timing comparison - it is very important.

If I read your values correctly, your gate is switching about 12V and your Source Pin is being driven between approximately -2.5V and +0.75V - it is difficult to see the zero line, but a close approximation is evident.

I am very interested in seeing the exact same setup presented with the new equipment monitoring. Particularly, any frequencies above 10MHz that may be present and undetected by your scope. It appears I can see about 15MHz there - this is the stuff that causes dielectric heating!

The first negative spike has a width of about 100nS at the top. At those frequencies, the 250pF output capacitance of the FET will look like an 11ohm resistor to the gate pulse - in other words, the energy will pass right through it, but only in a capacitive fashion (AC). The gate drops to zero, and the source drops negative (see my video) and then rebounds because it is isolated by the dielectric of the gate-source junction. There is also about 13nH of inductance in there that plays into this a small bit at those frequencies. And then, after the rebound, we get the next negative push off of the inductive collapse. All very interesting.

I think as you eluded to this is a complicated wave form with new and different aspects that need to be addressed and investigated with a little help maybe full understanding on what is exactly going on in this circuit.

Awesome work on the RF bands Very interesting that even the background RF falls off above 200MHz - perhaps the antenna isn't as sensitive up there.

Looking at the signals, I have to agree with you that your setup is not producing any RF above 12MHz and if it is the energy is so low its buried in the background 'noise'.

It is interesting to see the periods between dips that I assume are harmonic nodes of very little radiant energy compared to peaks in between (which are overpowered by the background in some places). It would seem that for your setup, in your location, the best low loss frequency is about 5.76MHz - primarily because this is where the background is the most quiet while the RA circuit is in one of its harmonic dips.

Is it my imagination, or does it appear that we are looking at the right hand sideband of a typical fundamental centered below your 10KHz starting point? Also, why are the dips so sharp ... ... the envelope has that same DC rectified appearance seen in Aaron's early pics. Of course his depicted the amplitude of a small band while yours are of the power of a wider band. I don't see how the two could relate unless there is some heterodyne interference popping out this way.

I may try and build a tuner to find out where my little circuit produces the most RF amplitude - but that would be far into the future as other matters precede it. It is curios that yours is very low power, while Aaron's easily tripped his lamp and mine injected enough interference into my wired keyboard interface 20cm away so as to cause the computer to process that as real keystrokes.

Looking forward to your results. I'm especially looking forward to seeing the Drain and Source signals in simultaneity (if such really exists - a little relativity humor there ). I hope the scope doesn't introduce some strange quantum issue that precludes us from viewing both together. As long as the Source signal still resembles your previous snapshots, we should be ok

I earlier today went to the Tektronix campus and met with Lisa and we had a wonderful meeting on this project, and she was so kind to lend me a Tektronix TDS 3054C the same model that Aaron has. I cannot express enough the utmost gratitude from myself and other forum members that Lisa of Tektronix has given us the opportunity to utilize this equipment that is now on loan to two members of Energetic Forum, and how much this actually means to the "open source" community.

I have not been granted use of the TDS 3054C for the weekend ...... but for a entire week .... more than pleasant surprise .... elated is more like it !!

The time is at hand ... testing starts tomorrow ..... results will be coming in using the finest equipment from a company that manufactures Oscilloscopes in the world "TEKTRONIX"

Thank You for some reason just doesn't seem enough ..... but hopefully our results will help !!

When some people have not only been outright troublemakers
coupled with the fact that they have been wrong about 100%
of the time, that is the response they get and my response is
based on an explanation to me about what they were asking.

I do not read ou.com anymore because the Ainslie thread over
there was a James Randi wannabe social club and I have no
time for that sort of mental degeneration. And I'm only talking
about that thread and not the forum.

The only real significance of the capacitance of the mosfet is
that it is responsible for the oscillations and he or they can
take it or leave it.

He isn't qualified to analyze a flashlight.

I understand. I agree that for some individuals, the only way they can elevate themselves is by putting everyone down around them. This is a typical Bully / Victim symbioses. (Bully Psychology ) One of the key ingredients that fuels this type of behavior is the same thing found among gangs where a perpetrator feels he has earned the respect of his 'peers' through violent or abusive action. Sadly, this is always a hollow victory because the Bully is really seeking validation from those he subconsciously considers to be the authorities. Internally, the Bully knows that the authority he seeks validation from would never authorize or condone abusive action. So the worthless 'pats on the back' may boost the Bully's ego temporarily, but fades quickly - this necessitates an endless cycle of renewed attacks in an attempt to gather more support from the gang and stems from an inward feeling of inferiority. Note the solution that seems to work:

Quote:

Originally Posted by http://www.psychologymatters.org/bullying.html

The intervention program is built on four key principles. These principles involve creating a school - and ideally, also a home - environment characterized by: (1) warmth, positive interest, and involvement from adults; (2) firm limits on unacceptable behavior; (3) consistent application of non-punitive, non-physical sanctions for unacceptable behavior and violation of rules, and, (4), adults who act as authorities and positive role models. The program works both at the school, the classroom and the individual levels, and important goals are to change the "opportunity and reward structures" for bullying behavior, resulting in fewer opportunities and rewards for bullying.

It is common for the victims to lash back in an attempt to encourage empathetic feelings in the Bully by causing the Bully to experience the same pain they may be inflicting - unfortunately, the Bully rarely responds in the manner hoped and often finds the backlash humorous or amusing and may even perpetuate it for that purpose.

Both Poynt99 and Mile High are going through a learning process here, as are we. For example, Poynt99 was unaware that the spice model would incorrectly allow negative current flow against a positive potential. Mile High was unaware that Spice could model thermal information. I've learned that Spice doesn't correctly model the diode clamping in a capacitive circuit (something I was hoping to show in my last video) and all of us have been learning new things about that wonderful scope you have to work with.

Sometimes we need to put our egos in the Faraday cage when we work together as a team. From what I have seen, .99 has the potential to be a team player and he has skills to go along with that potential. We just need to stop tearing each other down - it is counter productive. A wise man once said "A house divided against itself cannot stand". One way to help with this is to avoid impugning bad motives on the others in the team. While it is nearly impossible to find anyone who is perfectly free of prejudice, we must accept that those who work toward disproving a theory can be just as objective as those who work toward proving it. Each part of the team has different goals and hopes but both are equally important. If members of the team purposely work to sabotage or subvert the progress or even distract attention away from the primary goal, then they will have publicized their efforts for all to see, thus exposing the ulterior motives within.

It is up to us to be the adults we are and not play into the role of the bullied victims. Only then can we hope to help elevate the bullies to the level of productive team members. Both .99 and Mile High are to be commended for vocalizing their viewpoints in constructive ways, even if it is constructive criticism. But they need to made aware of the inappropriate and unacceptable behavior of denigrating other members of the forum community regardless of how superior they may feel they themselves are.

I think you are right about the right hand sideband of a typical fundamental
centered below the 10KHz starting point. That was my impression also.

I'm currently running the circuit at 2,4KHz and ON duty of only 3 to 4% so
there is not much energy going into the 6,5uH/10 Ohm coil/resistor. There
is almost no heat in the load resistor.

I don't know what frequency and duty cycle you are using when you noticed
the RF field disturbing the keyboard. But I guess is it closer or at the resonant
frequency of you load resistor / stray capacitance (LC)?

Here is what I will do, I will add a parallel capacitor to my load resistor and
tune the frequency to the resonant frequency of the LC. I will also increase
the ON duty cycle to approx. 50%. I have calculated that a 330nF cap
in parallel with my 6,5uH will give me a resonant frequency of 108,67KHz.
This frequency is above my 10KHz limit of the spectrum analyzer so the
RF will be easy to see.

I earlier today went to the Tektronix campus and met with Lisa and we had a wonderful meeting on this project, and she was so kind to lend me a Tektronix TDS 3054C the same model that Aaron has. I cannot express enough the utmost gratitude from myself and other forum members that Lisa of Tektronix has given us the opportunity to utilize this equipment that is now on loan to two members of Energetic Forum, and how much this actually means to the "open source" community.

I have not been granted use of the TDS 3054C for the weekend ...... but for a entire week .... more than pleasant surprise .... elated is more like it !!

The time is at hand ... testing starts tomorrow ..... results will be coming in using the finest equipment from a company that manufactures Oscilloscopes in the world "TEKTRONIX"

Thank You for some reason just doesn't seem enough ..... but hopefully our results will help !!

I think you are right about the right hand sideband of a typical fundamental
centered below the 10KHz starting point. That was my impression also.

I'm currently running the circuit at 2,4KHz and ON duty of only 3 to 4% so
there is not much energy going into the 6,5uH/10 Ohm coil/resistor. There
is almost no heat in the load resistor.

I don't know what frequency and duty cycle you are using when you noticed
the RF field disturbing the keyboard. But I guess is it closer or at the resonant
frequency of you load resistor / stray capacitance (LC)?

Here is what I will do, I will add a parallel capacitor to my load resistor and
tune the frequency to the resonant frequency of the LC. I will also increase
the ON duty cycle to approx. 50%. I have calculated that a 330nF cap
in parallel with my 6,5uH will give me a resonant frequency of 108,67KHz.
This frequency is above my 10KHz limit of the spectrum analyzer so the
RF will be easy to see.

Groundloop.

Sounds like a good plan.

On mine, the on time was always around 15uS, but the aperiodic nature had the off time all over the map - so when that occurs the duty cycle is pretty much thrown to the wind ... (Solar wind perhaps ) ... but the 50% is a sound start. We may have had duty cycles as high as 90% mixed in there part of the time.

I couldn't get the heat without reducing the physical size of the resistor. 50°C+ over ambient when ambient is 20°C is quite a bit and I was doing good to reach 50°C above 0°C even on the small resistor with ambient at 27°C. So, I am still looking for a way to get that, and am hopeful that the heat Glen is getting will point us in the right direction.

I see we're all geting the benefit of your wisdom here. I read that extract loosely based on Olweus' study. Very interesting. How, in heaven's name does it then continue into adulthood? To me the arch bully was TK. True he retired when he also got bullied. And definitely he needed his audience to keep fuelling his confrontations. But the concern actually is - does the playground bully become your average Joe or does he regress into a kind of social 'misfit' - even sociopath? I'd love to know. I suppose because I'm still trying to get my head around TK's attack.

I do think that Poynt's got a contribution here. I had thought it best that he post on this thread. But frankly - for general peace - perhaps it's better he stay put. Fuzzy or someone can always post across as needed. Frankly I'd prefer it that Aaron stay even tempered??? LOL.

And I must admit I sympathise with Aaron. I still don't see Poynt's gratitude for the hard work that Aaron did. In my book that's significant. That anyone disagrees with anyone else is always a good thing - provided it can be expressed. That's when an argument is fun. And I think - speaking for myself - my own level of optimism needs constant exposure to counter argument - else I run the real danager of becoming a FANATIC. God forbid.

EDIT - And this is for MileHigh - as I think he reads here more than there - you see how transparent are the motives of your average troll!!

Did not go so well. I ended up using a 10uF 650V metallized polypropylene
(MKP) +/-5% capacitor in parallel with the load resistor.
At 6,5uH the resulting parallel LC resonance should have been 19,74KHz.
Tuning the circuit frequency around that frequency did not show any
clear resonance point.

The power supply was pushing 1,02 Amp at 12.0 VDC into the circuit.
The resulting RF radiation was at -53dBm when the pick up antenna was
very close to the load resistor. It seems that you are right about the
resistor converting most of the energy to heat so very little RF energy
can radiate. My resistor got "smoking" hot (burned my finger).

Groundloop.

__________________

Last edited by Groundloop; 10-03-2009 at 05:58 AM.
Reason: Spelling and added data

Did not go so well. I ended up using a 10uF 650V metallized polypropylene
(MKP) +/-5% capacitor in parallel with the load resistor.
At 6,5uH the resulting parallel LC resonance should have been 19,74KHz.
Tuning the circuit frequency around that frequency did not show any
clear resonance point.

The power supply was pushing 1,02 Amp at 12.0 VDC into the circuit.
The resulting RF radiation was at -53dBm when the pick up antenna was
very close to the load resistor. It seems that you are right about the
resistor converting most of the energy to heat so very little RF energy
can radiate. My resistor got "smoking" hot (burned my finger).

Groundloop.

I think the reason for this is because the inductor has a high resistance and the capacitor is placed across both the inductor and the resistor. This results in a special case of parallel RLC filter often referred to as a 'Wave Trap'. We end up with two branches in the filter, the RL branch and the C branch. Resonance occurs when the admittance for both branches are equal. There is a somewhat complex equation for deriving the admittances but the net results resolves to the RL branch admittance as being equal to the inductive reactance divided by the sum of the resistance squared and the inductive reactance squared (XL / rL² + XL² ) and the C branch admittance as being equal to the reciprocal of the capacitive reactance (1 / XC). Since these two need to be equal, we can flip the equation to get the XC. (XC = rL² + XL² / XL ). Once we know the XC we can derive the value of C in farads from C = 1 / 2πfXC

I wanted to see if a wire wound resistor was able to oscillate at all and
also at what frequency it would oscillate at.

So I designed this circuit:
The oscillator did run very well indeed.
I made a Ferrite coil inside the load resistor like this:
The o-scope is showing an oscillation:
The frequency counter said that the frequency was 966.567KHz :
The finished unit look like this:

I wanted to see if a wire wound resistor was able to oscillate at all and
also at what frequency it would oscillate at.

I think to be sure that the coil part of the resistor is oscillating, that you could substitute the wire wound resistor with a carbon resistor with the feed back coil wrapped around it. Then see if you still have 966Khz oscillations.

edit: Never mind. It would be hard to reproduce the ferrite bar you used. That ferrite will increase the inductance of both "coils" because it is inside of the wire wound resistor, thus lowering the frequency of operation. So just wrapping the feedback coil around the carbon resistor may cause the circuit to oscillate, but it would run at a far higher frequency.

Well we are not the best engineers in the world, but you guys certainly ARE , looks like we got better results from the advice guy have a new report, what we noticed is our inductor is 2.7uH, and every ones else's is way over so i think we will make Glen's wire wound inductor for next run, Andrew seems to think that could be the problem, we are winding one now.

Thanks Jib, Alex, Glen, Harvey , Aaaron great posts guys been great to read and watch, have been busy getting into the David Wells weather modification device, its based om Joseph Newman's, Jib and Aaron expect an email from me soon when the device gets here. Here is the report guys

Hey all,

I have added the 4k resistance (25 turn 5K variable resistor) to the negative dominant 555 timer circuit (revision: August 26 2009) and got it working. There seems to be less heat on the 555 timer. I replaced the 1N4007 diode on the 4700uF 50V capacitor with 2 x 1N914 diodes (parallel) to capture the back spikes off the resistor.

In the first test I used 1 x 12 volt battery:
Using 12.35V and 375mA input, I collected 9.52V across the cap / 470 ohm resistor. There was hardly any heat for a practical application.

In the second test I used 2 x 12V batteries in series for 24 volts.
Using 24.88V and 730mA input, I collected 19.17V across the cap / 470 ohm resistor. There was some more heat from the 10 ohm resistor.

I think it is 2.7uH so I'll get some resistance wire and shrink and wind a higher inductance as per Glen's resistor. Has anyone tried any IC superior to the 555 timer for their circuits?

When designing radio frequency circuits, one use coils with Iron or Ferrite
trimmers. That way one can adjust the coil to the correct value.

A Ferrite rod or soft Iron rod inserted partly into the load resistor will
change the resistor inductance. With a Ferrite rod you can then adjust
your coil value from 2,7uH to many mH just by inserting or removing
the rod in and out of the load resistor.

I do not know if this is "allowed" in the RA circuit, but theory dictates
that with more inductance the more inductive voltage spikes and thus
more COP.

Groundloop, my 2 Cents, even, when i dont work right now on it,
because i am busy with some other things.

The Circuit was actually about Harnessing BEMF, the Proof is actually shown at the Article,
and someone could calculate it too, my Resistor Wire did heat up over 40C,
hot enough,
Then take the Joules, what are needed to produce Heat like this, and like the 'Established Science' needs for, to got a bit of a Clue, and see, how much Energy is lost at the Source.
Actually i had not really a loss at the Source, and i dont know, what this Kindergarden at OU.com should be.
They have not really a Clue, what they did show often enough, just some basic Knowledge for cry a bit around.

Actually its pretty poor, that they are finicky about every little Thing, what maybe 'could' show, it could be wrong.
A Goal would be, to make the Wire glowing, instead crying around like Babys.
And well, i found out, how to make neat HV, but unfortunatly,
this Circuit needs Amps and Voltage to be handy.
And else, i would say, all is allowed, what does help.

But i repeat again for the slow thinker at Ou.com. HARNESSING BEMF.

__________________
Theorizer are like High Voltage. A lot hot Air with no Power behind but they are the dead of applied Work and Ideas.

Hello Elias. Always nice to meet a new member. And I'm delighted to see that you'll be replicating.

I can't advise you here which test to do. Basically there are two branches going on - the one being to test the heat - and the other to test the 'cold'`? But check out Fuzzy's next post. And the circuit with it? I'm sure he'll reference this. Then take your pick.

Definitely both Aaron and Fuzzy have optimised circuits. I've left out Groundloop as he has his own recommended changes. But may I add that I'm blown away by the evident skill in Groundloops data capture. And such precision photography. There is clearly no end of talent on this forum. We're really blessed.

I'm just on such a high at the moment. With very good reason I might add.

My friend .... here are those scope shots you wanted the source waveform superimposed with the drain waveform for timing comparison and the timer duty cycle plus running frequency.

These are some images prior to the 6 hour test on the Rosemary Ainslie COP>17 Heater Circuit I just performed and will be posting later with excellent results ...... a hint are in the images here ......

Hello Elias. Always nice to meet a new member. And I'm delighted to see that you'll be replicating.

I can't advise you here which test to do. Basically there are two branches going on - the one being to test the heat - and the other to test the 'cold'`? But check out Fuzzy's next post. And the circuit with it? I'm sure he'll reference this. Then take your pick.

Definitely both Aaron and Fuzzy have optimised circuits. I've left out Groundloop as he has his own recommended changes. But may I add that I'm blown away by the evident skill in Groundloops data capture. And such precision photography. There is clearly no end of talent on this forum. We're really blessed.

I'm just on such a high at the moment. With very good reason I might add.

Hi Rosemary,

Hopefully, I will be able to replicate it today, as I have bought a 40 ohm resistive wire for heating water, and an IRFP450 Mosfet.